CN102695201B - A kind of interference management method, device and system - Google Patents

A kind of interference management method, device and system Download PDF

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Publication number
CN102695201B
CN102695201B CN201110067486.7A CN201110067486A CN102695201B CN 102695201 B CN102695201 B CN 102695201B CN 201110067486 A CN201110067486 A CN 201110067486A CN 102695201 B CN102695201 B CN 102695201B
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China
Prior art keywords
home enodeb
described
base station
message
according
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CN201110067486.7A
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Chinese (zh)
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CN102695201A (en
Inventor
徐敏
陈东
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华为技术有限公司
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H04W52/244Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/143Downlink power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/045Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Abstract

The invention discloses a kind of interference management method, device and system.The embodiment of the present invention adopts and allows Home eNodeB register in advance in macrocell, thus make base station controller have a understanding shifted to an earlier date to potential interference source femtocell information, so that follow-up needs terminal to carry out common measurement and reports, just can find interference source Home eNodeB easily, and interference management is carried out to interference source Home eNodeB, avoid in prior art, need the cell ID getting interference source Home eNodeB by terminal just can carry out the situation of interference management; Adopt the program in time and effectively carry out interference management to Home eNodeB, Home eNodeB can be reduced to the interference of terminal.

Description

A kind of interference management method, device and system

Technical field

The present invention relates to communication technical field, be specifically related to a kind of interference management method, device and system.

Background technology

Along with the development of mobile communication technology, user's request more and more presents variation.In order to meet the diversified demand of user, the private networks such as Home eNodeB (HNB, HomeNodeB) arise at the historic moment.Wherein, Home eNodeB is also referred to as femtocell (Femtocell) base station.

Home eNodeB has three kinds of different access modules: closed mode, mixed mode and open mode.Closed mode only allows contracted user to access community; Mixed mode allows all users to access community, but distinguishes signing and non-contracted user, and provides different access grades and the grade of service accordingly; Open mode is similar macrocell then, allows all users to access.

Home eNodeB compared with traditional macrocell, have coverage little, carry that number of users is limited, the feature such as quantity tool is large, dense deployment and multiple-layer overlapped covering; And the equipment to manage for user due to Home eNodeB, but not operator's control appliance, so the unified management of whole net is carried out in inconvenience.When Home eNodeB and macrocell use same frequency to arrange net, have overlapping phenomenon because macrocell network covering and home base station network cover, so can problem of co-channel interference be caused, comprise up-downgoing interference mutual between macrocell and Home eNodeB; Particularly when the close Home eNodeB of the terminal (i.e. non-contracted user) without access to family base station authority, because Home eNodeB signal is comparatively strong, so interference can be produced to the communication of terminal, even cause call drop.Thus, prior art proposes carries out interference management flow process between macrocell and Home eNodeB, to reduce the interference to terminal, specific as follows:

When terminal is after Home eNodeB, terminal reads the system message of interference source Home eNodeB, to obtain the cell ID (cellidentity) of this interference source Home eNodeB, then the cell ID of this interference source HNB is reported the radio network controller (RNC of macrocell, RadioNetworkController), find this target household base station by RNC according to this cell ID, and notify this Home eNodeB adjustment transmitting power, to reduce the interference to terminal.

To in the research and practice process of prior art, the present inventor finds, due to some factor, the reason of such as co-channel interference or the ability of terminal such as not to support at the reason, terminal may be caused cannot to receive the system message (namely cannot get the cell ID of interference source Home eNodeB) of interference source Home eNodeB, thus the interference management flow process cannot carried out between follow-up macrocell and Home eNodeB, cause terminal generation service disconnection; And terminal read system message also needs to expend certain hour, this also may cause interference management not carry out in time, causes terminal call drop.

Summary of the invention

The embodiment of the present invention provides a kind of interference management method, device and system, in time and effectively carry out interference management to Home eNodeB, can reduce Home eNodeB to the interference of terminal.

An aspect of of the present present invention provides a kind of interference management method, comprising:

Receive the login request message that Home eNodeB sends, described login request message carries log-on message;

According to described log-on message, Home eNodeB is positioned, and return and represent that the registration reply message that succeeds in registration is to Home eNodeB;

The metrical information about Home eNodeB that receiving terminal reports;

According to the interference source Home eNodeB of described log-on message and metrical information determination terminal;

Power adjustment is carried out to described interference source Home eNodeB.

Another aspect of the present invention provides a kind of interference management method, comprising:

Send login request message to base station controller, described login request message carries log-on message;

The registration reply message that the expression that reception base station controller returns is succeeded in registration;

When being confirmed as interference source Home eNodeB, accept the power adjustment of base station controller.

Another aspect of the present invention provides a kind of base station controller, comprising:

Log-on message receiving element, for receiving the login request message that Home eNodeB sends, described login request message carries log-on message;

Registering unit, positions Home eNodeB for the log-on message received according to log-on message receiving element, and returns and represent that the registration reply message that succeeds in registration is to Home eNodeB;

Metrical information receiving element, for the metrical information about Home eNodeB that receiving terminal reports;

Determining unit, for the interference source Home eNodeB according to described log-on message and metrical information determination terminal;

Adjustment unit, carries out power adjustment for the interference source Home eNodeB determined determining unit.

Another aspect of the present invention provides a kind of Home eNodeB, comprising:

Transmitting element, for sending login request message to base station controller, described login request message carries log-on message;

Receiving element, the registration reply message that the expression returned for receiving base station controller is succeeded in registration;

Adjustment unit, for when being confirmed as interference source Home eNodeB, accepts the power adjustment of base station controller.

Another aspect of the present invention provides a kind of communication system, it is characterized in that, comprises any one base station controller and any one Home eNodeB that the embodiment of the present invention provides.

The embodiment of the present invention avoids in prior art, needs the cell ID (namely receiving the system message of interference source Home eNodeB) getting interference source Home eNodeB by terminal just can carry out the situation of interference management; Adopt the program in time and effectively carry out interference management to Home eNodeB, Home eNodeB can be reduced to the interference of terminal.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the flow chart of the interference management method that the embodiment of the present invention provides;

Fig. 2 is another flow chart of the interference management method that the embodiment of the present invention provides;

Fig. 3 a is the network scenarios figure in the embodiment of the present invention;

Fig. 3 b is the another flow chart of the interference management method that the embodiment of the present invention provides;

Fig. 4 a is the structural representation of the base station controller that the embodiment of the present invention provides;

Fig. 4 b is another structural representation of the base station controller that the embodiment of the present invention provides;

Fig. 5 a is the structural representation of the Home eNodeB that the embodiment of the present invention provides;

Fig. 5 b is another structural representation of the Home eNodeB that the embodiment of the present invention provides.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those skilled in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

The embodiment of the present invention provides a kind of interference management method, device and system.Technical scheme of the present invention, various communication system can be applied to, such as: GSM, code division multiple access (CDMA, CodeDivisionMultipleAccess) system, Wideband Code Division Multiple Access (WCDMA) (WCDMA, WidebandCodeDivisionMultipleAccessWireless), GPRS (GPRS, GeneralPacketRadioService), Long Term Evolution (LTE, LongTermEvolution) etc.Be described in detail for WCDMA below.

One embodiment of the method for the interference management method provided for the embodiment of the present invention below.

The angle of the base station controller from macrocell is described by the present embodiment.This base station controller is specifically as follows the network equipments such as RNC.

A kind of interference management method, comprise: receive the login request message carrying log-on message that Home eNodeB sends, according to this log-on message, Home eNodeB is positioned, and return and represent that the registration reply message that succeeds in registration is to Home eNodeB, the metrical information about Home eNodeB that receiving terminal reports, according to the interference source Home eNodeB of log-on message and metrical information determination terminal, power adjustment is carried out to the interference source Home eNodeB determined.

See Fig. 1, a kind of idiographic flow of interference management method can be as described below.

101, receive the login request message (RegisterRequest) that Home eNodeB sends, wherein, this login request message carries log-on message.

Wherein, log-on message can comprise essential information and other information of Home eNodeB.

Such as, the essential information of Home eNodeB can comprise the main scrambler (PSC, PrimaryScramblingCode) of Home eNodeB and/or the transmitting power of Home eNodeB and/or access module and/or access control lists etc.

Such as, other information of Home eNodeB can comprise other adjacent cell signal qualitys and/or the time difference information of Home eNodeB and macrocell and/or the positional information of Home eNodeB that macro-cell signals quality that Home eNodeB receives and/or Home eNodeB receive to circuit loss value and/or the Home eNodeB of macrocell.Wherein, positional information can be specifically various locating information, such as global positioning system (GPS, GlobalPositioningSystem) locating information etc.

102, according to the log-on message that receives, Home eNodeB is positioned (namely registering), and return and represent that the registration reply message (RegisterResponse) succeeded in registration is to Home eNodeB.

Wherein, positioning Home eNodeB according to the log-on message received specifically can be as described below.

Such as, other neighbor cell signal quality that can receive to main scrambler and the Home eNodeB of the circuit loss value of Home eNodeB and Home eNodeB according to macrocell position Home eNodeB; Or, according to other neighbor cell signal quality that main scrambler and the Home eNodeB of Home eNodeB receive, Home eNodeB is positioned; Or, Home eNodeB is positioned to the circuit loss value of Home eNodeB and the main scrambler of Home eNodeB according to macrocell; Such as, the macro-cell signals Mass Calculation that can receive according to the transmitting power of macrocell and Home eNodeB circuit loss value (pathloss), and other neighbor cell signal quality then received according to main scrambler and the Home eNodeB of this circuit loss value, Home eNodeB position Home eNodeB; Or,

Again such as, other neighbor cell signal quality that can receive according to main scrambler and the Home eNodeB of Home eNodeB position Home eNodeB; Or,

Again such as, can position Home eNodeB to the circuit loss value of Home eNodeB and the main scrambler of Home eNodeB according to macrocell; Or,

Again such as, can position Home eNodeB according to the time difference information of the main scrambler of Home eNodeB and Home eNodeB and macrocell; Or,

Again such as, can position Home eNodeB according to the positional information of the main scrambler of Home eNodeB and Home eNodeB; Or,

Again such as, can also position Home eNodeB according to the positional information of Home eNodeB, such as, specifically can position Home eNodeB according to the GPS locating information of Home eNodeB.

Optionally, now base station controller can also judge whether to there is interference to macrocell according to the transmitting power of Home eNodeB, if existed, then can adjust the transmitting power of Home eNodeB, namely this interference management method can also comprise: when determining that this Home eNodeB causes interference to macrocell according to the transmitting power of Home eNodeB, adjust the transmitting power of Home eNodeB.

During concrete adjustment, independently power can be sent and adjust signaling to Home eNodeB, also directly Home eNodeB can be adjusted by the registration reply message carrying power adjustment message, wherein, come directly to adjust Home eNodeB to Home eNodeB, can signaling process be saved relative to sending independently power adjustment signaling by registration reply message.Wherein, this power adjusts adjustable extent and/or the information such as adjusting range and/or temporal information that can comprise power in signaling or power adjustment message, and wherein, temporal information can comprise start-up time and/or the recovery time of power adjustment, etc.

In addition, optionally, if the log-on message of Home eNodeB, such as essential information or signal quality there occurs change, then updating message informing base station controller can be passed through, namely this interference management method can also comprise: base station controller receives the updating message (UpdateRequest) that Home eNodeB sends, and wherein, this lastest imformation carries the log-on message of renewal.

103, the metrical information about Home eNodeB that reports of receiving terminal.

Wherein, the positional information of Home eNodeB that this metrical information can comprise the main scrambler of the Home eNodeB measured and/or the time difference information of the signal quality measured and/or the Home eNodeB measured and macrocell and/or measure, wherein, positional information can be specifically various locating information, such as GPS locating information etc.

It should be noted that, the time of these metrical informations is obtained in order to save terminal, and the amount of information of the log-on message carried when reducing registering family base station, during specific embodiment, the content of log-on message and metrical information can be selected according to the demand of practical application, wherein, metrical information generally can be set to the subset of log-on message, such as, if log-on message comprises the transmitting power of Home eNodeB, the main scrambler of Home eNodeB, access module, access control lists and signal quality, then now terminal needs the metrical information reported can comprise main scrambler and the signal quality of the Home eNodeB measured, again such as, if log-on message comprises the positional information of Home eNodeB, then now terminal needs the metrical information reported to be specifically as follows the positional information of the Home eNodeB measured, etc..

104, according to the interference source Home eNodeB of described log-on message and metrical information determination terminal.

Such as, by the main scrambler of the Home eNodeB in log-on message, and/or the time difference information of this Home eNodeB and macrocell, and/or the positional information of Home eNodeB, and/or the main scrambler of the Home eNodeB measured in the macro-cell signals quality that receives of Home eNodeB and metrical information, and/or the time difference information of the Home eNodeB measured and macrocell, and/or the positional information of the Home eNodeB measured, and/or the signal quality measured mates, if can mate, then determine Home eNodeB corresponding to the metrical information that this Home eNodeB reports for terminal (i.e. terminal measure Home eNodeB), be called target household base station in embodiments of the present invention.

Such as, when can not access this target household base station according to the access module of target household base station and/access control lists determination terminal, determine that this target household base station is interference source Home eNodeB; Or, determine that the access module of this target household base station is closed mode according to the access module in log-on message, and not in the Neighboring Cell List of macrocell, and terminal does not support close subscriber group (CSG, ClosedSubscriberGroup), then determine that this target household base station is interference source Home eNodeB.

If determine that target household base station is not interference source base station, then the power adjusting step after not carrying out, does not namely perform step 105.

Wherein, interference source Home eNodeB refers to Home eNodeB terminal being produced to interference.Interference source Home eNodeB is also the target BS needing to carry out power adjustment in the embodiment of the present invention.

105, power adjustment is carried out to the interference source Home eNodeB determined in step 104, to reduce the interference of Home eNodeB to terminal.

Such as, can send carry power control information space interface signaling to Home eNodeB; Or transmitted power adjustment signaling is to Home eNodeB.

Wherein, power control information or power adjustment signaling can comprise: the adjustable extent of power, adjusting range and/or temporal information.Wherein, temporal information can comprise start-up time and/or the recovery time of power adjustment, etc.

The adjustable extent of power refers to the maximum adjustable extent of power; Adjusting range refers to the size of the power adjusted each time; Refer to the time that Home eNodeB starts Modulating Power start-up time; Refer to the time that current power is reverted to original watt level by Home eNodeB recovery time.

Such as, method of adjustment specifically can be as follows:

At As-received station control, after power adjustment signaling that such as RNC sends, Home eNodeB is according to the adjustment information downward transmitting power in preset strategy (this strategy by base station controller and Home eNodeB both sides hold consultation agreement) or this power control signal.Such as, can steps downward transmitting power, namely often receive a power adjustment signaling, then lower a (dBm), and start timer T1, if receive a power adjustment signaling in T1 expires again, then lower a (dBm) again, and restart timer T1.If timer T1 expires, do not receive down command again, then recover a (dBm), until return to initial transmitting power.Wherein, the adjusting range of a (dBm) for specifying in preset adjusting range or power adjustment signaling.Certainly, other method of adjustment can also be adopted, specifically see prior art, can not repeat them here.

Optionally, all right this interference source Home eNodeB of first paging before power adjustment is carried out to interference source Home eNodeB, to notify that interference source Home eNodeB carries out power adjustment, namely before carrying out power adjustment to interference source Home eNodeB, this interference management method can also comprise: this interference source Home eNodeB of paging.

Optionally, after terminal leaves interference source family, base station controller can also notify that Home eNodeB recovers original power, or Home eNodeB recovers original power voluntarily according to recovery time.Namely after carrying out power adjustment to interference source Home eNodeB, this interference management method can also comprise: after determining that terminal leaves this interference source Home eNodeB, notifies that this interference source Home eNodeB recovers power.

It should be noted that, the said power of the embodiment of the present invention, refers to transmitting power.

As from the foregoing, the present embodiment adopts and allows Home eNodeB register in advance in the base station controller of macrocell, thus make base station controller have a understanding shifted to an earlier date to potential interference source Home eNodeB, like this, follow-up needs terminal carry out a common measurement and report, just can find interference source Home eNodeB easily, and interference management is carried out to interference source Home eNodeB, the program is adopted to can be avoided in prior art, need the cell ID (namely receiving the system message of interference source Home eNodeB) getting interference source Home eNodeB by terminal just can carry out the situation of interference management, can in time and effectively interference management is carried out to Home eNodeB, to reduce the interference of Home eNodeB to terminal.

The other method embodiment of the interference management method provided for the embodiment of the present invention below.

Angle from Home eNodeB is described by the present embodiment.

A kind of interference management method, comprising: transmission carries the login request message of log-on message to the base station controller of macrocell; The registration reply message that the expression that reception base station controller returns is succeeded in registration; When being confirmed as interference source Home eNodeB, accept the power adjustment of base station controller.

Wherein, base station controller is specifically as follows the net control devices such as RNC.

See Fig. 2, a kind of interference management method idiographic flow can be as described below.

201, send login request message to the base station controller of macrocell, wherein, this login request message carries log-on message;

Wherein, log-on message can comprise essential information and other information of Home eNodeB.

Such as, essential information can comprise the main scrambler of Home eNodeB and/or the transmitting power of Home eNodeB and/or access module and/or access control lists etc.

Other information can comprise other adjacent cell signal qualitys and/or the time difference information of Home eNodeB and this macrocell and/or the positional information etc. of Home eNodeB that the circuit loss value of this macro-cell signals quality that Home eNodeB receives and/or Home eNodeB and this macrocell and/or Home eNodeB receive.Wherein, positional information can be specifically various locating information, such as GPS locating information etc.

During concrete enforcement, Home eNodeB can send login request message to base station controller by space interface signaling; Or, send login request message to base station controller by femto gateway (HNB-GW, HomeNodeBGateway) or core net (CN, CoreNetwork); Or, send login request message to base station controller by the direct interface of Home eNodeB and base station controller.

202, the registration reply message that the expression that reception base station controller returns is succeeded in registration.

203, when being confirmed as interference source Home eNodeB, the power adjustment of base station controller is accepted.

Such as, when being confirmed as interference source Home eNodeB, the space interface signaling carrying power control information that base station controller sends can being received, according to this space interface signaling, transmitting power is adjusted.Or, also can receive the power adjustment signaling that base station controller sends, then according to this power adjustment signaling, transmitting power be adjusted.Wherein, power control information or power adjustment signaling can comprise: the adjustable extent of power and/or adjusting range and/or temporal information.Wherein, temporal information can comprise start-up time and/or the recovery time of power adjustment, etc.

Such as, method of adjustment specifically can be as follows:

At As-received station control, after power adjustment signaling that such as RNC sends, Home eNodeB is according to the adjustment information downward transmitting power in preset strategy (this strategy by base station controller and Home eNodeB both sides hold consultation agreement) or this power control signal.Such as, can steps downward transmitting power, namely often receive a power adjustment signaling, then lower a (dBm), and start timer T1, if receive a power adjustment signaling in T1 expires again, then lower a (dBm) again, and restart timer T1.If timer T1 expires, do not receive down command again, then recover a (dBm), until return to initial transmitting power.Wherein, the adjusting range of a (dBm) for specifying in preset adjusting range or power adjustment signaling.Certainly, other method of adjustment can also be adopted, specifically see prior art, can not repeat them here.

Wherein, according to the metrical information of log-on message and terminal to report, base station controller can determine whether Home eNodeB is interference source Home eNodeB, see preceding embodiment, does not repeat them here.Wherein, the positional information etc. of Home eNodeB that the metrical information of terminal to report can comprise the main scrambler of the Home eNodeB measured and/or the time difference information of the signal quality measured and/or the Home eNodeB measured and macrocell and/or measure, wherein, positional information can be specifically various locating information, such as GPS locating information etc.

It should be noted that, the time of these metrical informations is obtained in order to save terminal, and the amount of information of the log-on message carried when reducing registering family base station, during specific embodiment, the content of log-on message and metrical information can be selected according to the demand of practical application, wherein, metrical information generally can be set to the subset of log-on message, such as, if log-on message comprises the transmitting power of Home eNodeB, the main scrambler of Home eNodeB, access module, access control lists and signal quality, then now terminal needs the metrical information reported can comprise main scrambler and the signal quality of Home eNodeB, again such as, if log-on message comprises the positional information of Home eNodeB, then now terminal needs the metrical information reported to be specifically as follows the positional information of the Home eNodeB measured, etc..

During concrete enforcement, Home eNodeB can select base station controller to initiate registration according to signal strength signal intensity, also can configure Home eNodeB in advance in home base station management system (HMS, HNBManagementSystem) and specifically which base station controller initiate registration to; Namely optional, before transmission login request message is to the base station controller of macrocell, this interference management method can also comprise:

Base station controller is selected according to signal strength signal intensity; Or, select base station controller according to the configuration in home base station management system;

Then now, step 201, namely sends login request message and is specifically as follows to the base station controller of macrocell: send login request message to the base station controller selected.

Optionally, if the log-on message of Home eNodeB there occurs change, updating message can also be sent to base station controller to upgrade the log-on message preserved in base station controller, namely this interference management method can also comprise: upgrade log-on message, the log-on message of renewal is sent to base station controller by updating message, so that base station controller upgrades log-on message.

If base station controller is when carrying out power adjustment to Home eNodeB, recovery time is included in entrained temporal information, then after the power adjustment accepting base station controller, when arriving this recovery time, transmitting power can also be adjusted back former transmitting power size.Or Home eNodeB also directly can receive the notice of the expression recovery power that base station controller sends, and then according to this notice, transmitting power is adjusted back Initial Trans (i.e. former transmitting power size).

As from the foregoing, the present embodiment adopts and allows Home eNodeB register in advance in the base station controller of macrocell, thus make base station controller have a understanding shifted to an earlier date to potential interference source Home eNodeB, like this, follow-up needs terminal carry out common measurement and report, just can find interference source Home eNodeB easily, and interference management is carried out to interference source Home eNodeB, the program is adopted to can be avoided in prior art, need the cell ID getting interference source Home eNodeB by terminal just can carry out the situation of interference management, can in time and effectively interference management is carried out to Home eNodeB, to reduce the interference of Home eNodeB to terminal.

According to the method above described by two embodiments of the method, below citing is described in further detail.In the present embodiment, RNC will be specially for base station controller to be described.

This interference management method specifically can be divided into three phases to implement, as described below.

(1) first stage: Home eNodeB selects RNC, and initiates register flow path to report log-on message.

1, Home eNodeB selects RNC:

In family's base station range, the cell signal of one or more same frequency or alien frequencies or different system may can be detected.After Home eNodeB start, descending detection can be carried out, to obtain essential information and the signal quality of these communities.Simultaneously optional, now Home eNodeB can select the frequency that disturbs minimum frequency as this Home eNodeB, and the frequency that configured also can be used as the frequency of this Home eNodeB.

After the frequency that the base station selected good frequency of family or use have configured, the same frequency macrocell RNC that Home eNodeB selects signal the strongest according to the signal quality of each community detected initiates register flow path.

2, Home eNodeB initiates register flow path to report log-on message to RNC:

Home eNodeB directly initiates register flow path by idle message to RNC, and the log-on message reported comprises essential information and other information of Home eNodeB.Wherein, the essential information of Home eNodeB can comprise the transmitting power of Home eNodeB and/or the main scrambler of Home eNodeB and/or access module and/or access control lists; The positional information of other adjacent cell signal qualitys that the macro-cell signals quality that other information comprise the time difference information of this Home eNodeB and macrocell, Home eNodeB receives and/or Home eNodeB receive to circuit loss value and/or the Home eNodeB of macrocell and/or Home eNodeB, etc.

The macro-cell signals Mass Calculation that RNC can receive according to the transmitting power of macrocell and Home eNodeB goes out circuit loss value, and the circuit loss value then reported according to this circuit loss value or Home eNodeB and other information of Home eNodeB position Home eNodeB; Or, the positional information that RNC also can report according to Home eNodeB, such as GPS locating information locates Home eNodeB, etc.

Optionally, RNC, after receiving the login request message of Home eNodeB, can judge whether there is interference to this macro base station according to the transmitting power of Home eNodeB, and directly adjust the transmitting power of Home eNodeB by registration reply message.

In addition, when the log-on message of Home eNodeB changes, also by updating message, the log-on message of renewal can be informed to RNC.

(2) second stage: terminal to report is measured, and determines interference source Home eNodeB.

When terminal is near Home eNodeB, common measurement (see prior art) is carried out, to obtain metrical information to Home eNodeB.The positional information etc. of Home eNodeB that this metrical information can comprise the main scrambler of the Home eNodeB measured and/or the time difference information of the signal quality measured and/or the Home eNodeB measured and macrocell and/or measure, wherein, positional information can be specifically various locating information, such as GPS locating information etc.Such as, can be as described below.

When the signal of terminal determination Home eNodeB exceedes pre-determined threshold, the information such as the main scrambler of this Home eNodeB and/or the time difference of signal quality and/or Home eNodeB and macrocell will be obtained, then by these information reportings to RNC.Wherein, pre-determined threshold can set according to the demand of practical application.

RNC can determine according to the log-on message reported when these metrical informations and registering family base station interference source Home eNodeB specifically which.

Such as, RNC can by the main scrambler of the Home eNodeB measured in metrical information, and/or the signal quality measured, and/or the time difference information of the Home eNodeB measured and macrocell, and/or the positional information of the Home eNodeB measured, with the main scrambler of the Home eNodeB in log-on message, and/or the macro-cell signals quality that Home eNodeB receives, and/or the time difference information of this Home eNodeB and macrocell, and/or the positional information of Home eNodeB carries out mating to determine target household base station, and then determine whether this target household base station is interference source Home eNodeB according to the access module in log-on message and access control lists, or, also can according to access module, macrocell Neighboring Cell List, and the ability of terminal determines whether this target household base station is interference source Home eNodeB, such as, if the access module of this target household base station is closed mode, and this target household base station is not at macrocell Neighboring Cell List, and terminal does not support close subscriber group (CSG, ClosedSubscriberGroup), then determine that this target household base station is interference source Home eNodeB, otherwise, then represent that terminal can be linked in this target household base station, RNC does not carry out power adjustment to this target household base station, namely the step of phase III is not performed.Again such as, if the access module of this target household base station is closed mode, and represent in access control lists and do not allow this terminal to access, then determine that this target household base station is interference source Home eNodeB, otherwise, then represent that terminal can be linked in this target household base station, RNC does not carry out power adjustment to this target household base station, does not namely perform the step of phase III.

(3) phase III: interference management flow process.

RNC carries out power adjustment to interference source Home eNodeB, and such as, RNC can use the transmitting power of power control commands to Home eNodeB to adjust by space interface signaling, or, also directly transmitted power can adjust signaling to Home eNodeB to carry out power adjustment.Certainly, before adjusting, paging can be carried out to Home eNodeB.

Now, Home eNodeB, while the Terminal for service for this community, also needs to accept relevant power control commands that RNC issues or power adjustment signaling, and lowers transmitting power according to these power control commands or power adjustment signaling.

Optionally, after RNC finds that terminal leaves this interference source Home eNodeB, can also notify that this interference source Home eNodeB recovers original power.Or, if RNC is when carrying out power adjustment to this interference source Home eNodeB, also send to temporal information to this Home eNodeB, and this temporal information comprises recovery time, then now Home eNodeB also can recover transmitting power according to temporal information voluntarily, namely, when arriving recovery time, original watt level is recovered.

According to the method for foregoing description, the following specific examples will be described in detail.

See Fig. 3 a, there are macrocell 1 and macrocell 2 two macrocells in network, wherein, the RNC of macrocell 1 is RNC1, the RNC of macrocell 2 is RNC2, and also comprise Home eNodeB 1, Home eNodeB 2 and Home eNodeB 3 in network, Home eNodeB 1 is positioned at the overlapping region of macrocell 1 and macrocell 2; Current, terminal A is just near Home eNodeB 1.

Then see Fig. 3 b, idiographic flow can be as described below.

301, Home eNodeB 1, Home eNodeB 2 and Home eNodeB 3 after powering, carry out descending detection respectively, and obtain the signal of each community that can detect in self coverage respectively, and the same frequency macrocell RNC selecting signal the strongest initiates register flow path.

Such as, in the present embodiment, because Home eNodeB 1 is positioned at the overlapping region of macrocell 1 and macrocell 2, so namely Home eNodeB 1 can detect the signal of macrocell 1, also the signal of macrocell 2 can be detected, and the signal strength signal intensity of macrocell 1 and macrocell 2 is all comparatively strong, so Home eNodeB 1 selects the RNC of macrocell 1 and/or macrocell 2 (i.e. RNC1 and RNC2) to initiate register flow path.And Home eNodeB 2 is positioned at the coverage of macrocell 1, so Home eNodeB 2 will select the RNC1 of macrocell 1 to initiate register flow path, in like manner, Home eNodeB 3 will select the RNC2 of macrocell 2 to initiate register flow path.

Wherein, initiate register flow path for Home eNodeB 1 to RNC1, register flow path specifically can be as follows.

(1) Home eNodeB 1 sends login request message to RNC1, wherein, carries log-on message in login request message;

(2) RNC1 positions (namely register) according to the log-on message received to Home eNodeB 1, and returns and represent that the registration reply message succeeded in registration is to Home eNodeB 1;

Optionally, step (3) and (4) can also be performed;

(3) Home eNodeB 1 sends updating message to RNC1, wherein, carries the log-on message of renewal in updating message;

(4) RNC1 upgrades the log-on message preserved, and returns renewal response message (UpdateResponse) to Home eNodeB 1.

302, when terminal A detects that the signal strength signal intensity of Home eNodeB 1 exceedes pre-determined threshold, Home eNodeB 1 is measured, obtain metrical information, such as, terminal A obtains the information such as the main scrambler 1 of this Home eNodeB 1 and/or the time difference information of signal quality 1 and/or Home eNodeB and macrocell, then by these information reportings to RNC1; Such as, terminal A especially by measurement report (MeasurementReport) by these information reportings to RNC1.

It should be noted that, terminal can select RNC to carry out reporting wherein according to preset strategy, and this preset strategy can be arranged according to the demand of practical application.General, terminal can select Serving RNC to report.For convenience, in the present embodiment, the Serving RNC taking RNC1 as terminal A is described for example, namely terminal A carries out reporting as example is described to RNC1, should be understood that, if RNC2 is the Serving RNC of terminal A, then terminal A also can to RNC2 report measurement information, carry out power by RNC2 to Home eNodeB 1 to control, identical with implementation method, do not repeat them here.

In addition, also it should be noted that, the time of these metrical informations is obtained in order to save terminal, and the amount of information of the log-on message carried when reducing registering family base station, during specific embodiment, the content of log-on message and metrical information can be selected according to the demand of practical application, wherein, metrical information generally can be set to the subset of log-on message, such as, if log-on message comprises the transmitting power of Home eNodeB, the main scrambler of Home eNodeB, access module, access control lists and signal quality, then now terminal needs the metrical information reported can comprise main scrambler and the signal quality of Home eNodeB, again such as, if log-on message comprises the positional information of Home eNodeB, then now terminal needs the metrical information reported to be specifically as follows the positional information of the Home eNodeB measured, etc..

303, after RNC1 receives the metrical information that terminal A reports, the log-on message of metrical information with each base station of preserving in RNC1 is mated, to determine interference source Home eNodeB.

Such as, comprise main scrambler and the signal quality of Home eNodeB for metrical information, specifically can be as follows:

In the present embodiment, because Home eNodeB 1 and Home eNodeB 2 have all initiated register flow path to RNC1, so save the log-on message of Home eNodeB 1 and Home eNodeB 2 in RNC1, see table one:

Table one:

Main scrambler Signal quality ...... Home eNodeB 1 Main scrambler 1 Signal quality 1 ...... Home eNodeB 2 Main scrambler 2 Signal quality 2 ...... ...... ...... ...... ......

RNC1 is receiving after terminal A reports main scrambler 1 and signal quality 1, the main scrambler of main scrambler 1 and signal quality 1 and each Home eNodeB preserved and signal quality are mated, see table, main scrambler due to Home eNodeB 1 is main scrambler 1, and signal quality is signal quality 1, so RNC determines that Home eNodeB 1 is for target household base station.

According to the access module of Home eNodeB 1 and access control lists, RNC1 determines whether this target household base station is interference source Home eNodeB again, or, determine whether this target household base station is interference source Home eNodeB according to the access module of Home eNodeB 1, macrocell Neighboring Cell List and terminal A CAMEL-Subscription-Information (namely judging whether terminal A belongs to close subscriber group).Such as, if the access module of Home eNodeB 1 is closed mode, and terminal A does not belong to the close subscriber group of Home eNodeB 1, then now can determine that Home eNodeB 1 is the interference source Home eNodeB of terminal A.

304, RNC1 transmitted power adjustment signaling is to Home eNodeB 1, reduces the transmitting power of Home eNodeB 1, to reduce the interference of Home eNodeB 1 couple of terminal A.Such as, RNC1 specifically can send transmitting power adjustment request (TransmitPowerAdjustRequest) to Home eNodeB 1.Optionally, Home eNodeB can return transmitting power adjustment response (TransmitPowerAdjustResponse) to RNC.

Wherein, this power adjustment signaling can comprise the adjustable extent of power and/or adjusting range and/or temporal information.Wherein, temporal information can comprise start-up time and/or the recovery time of power adjustment, etc.

Optionally, before step 304, all right first paging Home eNodeB 1 of RNC1, to notify that Home eNodeB 1 carries out power adjustment.

305, when RNC1 determines that terminal leaves Home eNodeB 1, notice Home eNodeB 1 recovers original watt level.Or Home eNodeB 1 is when determining that recovery time arrives, and being certainly about to power reverts to original watt level.This step (i.e. step 305) is optional.

Wherein, Home eNodeB (comprises upper mediation to lower) when Modulating Power, can adopt stepped adjustment, see prior art, not repeat them here.

As from the foregoing, the present embodiment adopts and allows Home eNodeB register in advance in the RNC of macrocell, thus make RNC have a understanding shifted to an earlier date to potential interference source Home eNodeB, like this, follow-up needs terminal carry out common measurement and report, just can find interference source Home eNodeB easily, and interference management is carried out to interference source Home eNodeB, the program is adopted to can be avoided in prior art, need the cell ID getting interference source Home eNodeB by terminal just can carry out the situation of interference management, can in time and effectively interference management is carried out to Home eNodeB, to reduce the interference of Home eNodeB to terminal.

In previous embodiment of the method, Home eNodeB can select RNC according to the signal strength signal intensity of each community, to initiate register flow path, in addition, can also unify configuration Home eNodeB specifically which RNC to initiate register flow path to by home base station management system.

In addition, in the register flow path that Home eNodeB is initiated to RNC, Home eNodeB is except can directly carry out with RNC communicating except (such as directly send login request message to RNC or directly receive the registration reply message that RNC returns), can also as the network equipment, by femto gateway (HNB-GW, or core net (CN HomeNodeBGateway), CoreNetwork) communicate with RNC, login request message is forwarded to RNC as by femto gateway or core net, etc.; Or, Home eNodeB can also by the direct interface transmission of information with RNC, just Home eNodeB is now needed first to obtain the down transmitting power of macrocell, then the signal quality of this macrocell recorded is combined, calculate corresponding circuit loss value, and this circuit loss value is carried in log-on message reports RNC.

Other steps of the present embodiment are identical with previous embodiment of the method, do not repeat them here.

As from the foregoing, the present embodiment is implemented except same beneficial effect with previous method except realizing, but also provides other to select the mode of RNC, and carry out with RNC the mode that communicates, realize comparatively flexible, when specifically implementing, can select according to the demand of practical application.

It should be noted that, for convenience, above embodiment is only with universal mobile telecommunications system (UMTS, UniversalMobileTelecommunicationsSystem) network is that example is described, should be understood that, the embodiment of the present invention is equally applicable to global system for mobile communications (GSM, GlobalSystemforMobileCommunications), general packet radio service technology (GPRS, GeneralPacketRadioService) network, Wideband Code Division Multiple Access (WCDMA) (WCDMA2000, WidebandCodeDivisionMultipleAccess2000) system, TD SDMA (TD-SCDMA, TimeDivision-SynchronousCodeDivisionMultipleAccess) system, Long Term Evolution (LTE, LongTermEvolution) system, WLAN (WLAN, WirelessLocalAreaNetworks)/Wireless Fidelity (WiFi, wirelessfidelity) network or worldwide interoperability for microwave access (WiMAX, WorldwideInteroperabilityforMicrowaveAccess) wireless network such as network, do not repeat them here.

In order to implement above method better, the embodiment of the present invention also correspondingly provides a kind of base station controller, as shown in fig. 4 a, this base station controller comprises log-on message receiving element 401, registering unit 402, metrical information receiving element 403, determining unit 404 and adjustment unit 405.

Described log-on message receiving element 401, for receiving the login request message that Home eNodeB sends, wherein, login request message carries log-on message; This log-on message can comprise essential information and other information of Home eNodeB.

Such as, the essential information of Home eNodeB can comprise the main scrambler of Home eNodeB and/or the transmitting power of Home eNodeB and/or access module and/or access control lists;

Other information of Home eNodeB comprise: other adjacent cell signal qualitys that the macro-cell signals quality that Home eNodeB receives and/or Home eNodeB receive to circuit loss value and/or the Home eNodeB of macrocell and/or the time difference information of this Home eNodeB and macrocell and/or the positional information of Home eNodeB.Wherein, positional information can be specifically various locating information, such as gps location etc.

Described registering unit 402, positions Home eNodeB for the log-on message received according to log-on message receiving element 401, and returns and represent that the registration reply message that succeeds in registration is to Home eNodeB.

Described metrical information receiving element 403, for the metrical information about Home eNodeB that receiving terminal reports;

Wherein, the positional information etc. of Home eNodeB that this metrical information can comprise the main scrambler of the Home eNodeB measured and/or the time difference information of the signal quality measured and/or the Home eNodeB measured and macrocell and/or measure, wherein, positional information can be specifically various locating information, such as GPS locating information etc.

It should be noted that, the time of these metrical informations is obtained in order to save terminal, and the amount of information of the log-on message carried when reducing registering family base station, during specific embodiment, the content of log-on message and metrical information can be selected according to the demand of practical application, wherein, metrical information is corresponding with log-on message.

Described determining unit 404, for the interference source Home eNodeB of metrical information determination terminal received according to log-on message and metrical information receiving element 403.

Described adjustment unit 405, carries out power adjustment for the interference source Home eNodeB determined determining unit 404.

It should be noted that, if determine that target household base station is not interference source base station, then power adjustment is not carried out to this Home eNodeB.

Optionally, registering unit 402, positions Home eNodeB specifically for other neighbor cell signal quality received to main scrambler and the Home eNodeB of the circuit loss value of Home eNodeB and Home eNodeB according to macrocell; Such as, can calculate circuit loss value according to the transmitting power of macrocell and signal quality, other neighbor cell signal quality then received according to main scrambler and/or the Home eNodeB of this circuit loss value and Home eNodeB position Home eNodeB.Or,

Registering unit 402, other neighbor cell signal quality that specifically may be used for receiving according to main scrambler and the Home eNodeB of Home eNodeB position Home eNodeB; Or,

Registering unit 402, specifically may be used for positioning Home eNodeB to the circuit loss value of Home eNodeB and the main scrambler of Home eNodeB according to macrocell; Or,

Registering unit 402, specifically may be used for positioning Home eNodeB according to the main scrambler of Home eNodeB and the time difference information of Home eNodeB and macrocell.Or,

Registering unit 402, specifically may be used for positioning Home eNodeB according to the main scrambler of Home eNodeB and the positional information of Home eNodeB.Or,

Registering unit 402, specifically also may be used for positioning Home eNodeB according to the positional information of Home eNodeB.

Optionally, now base station controller can also judge whether to there is interference to macrocell according to the transmitting power of Home eNodeB, if existed, then can adjust the transmitting power of Home eNodeB, that is:

Adjustment unit 405, also for before returning in registering unit 402 and representing that the registration reply message that succeeds in registration is to Home eNodeB, when determining that this Home eNodeB causes interference to macrocell according to the transmitting power of Home eNodeB, the transmitting power of Home eNodeB is adjusted.

Optionally, if the log-on message of Home eNodeB, such as essential information or signal quality there occurs change, then can pass through updating message informing base station controller, namely as shown in Figure 4 b, this base station controller can also comprise updating block 406.

Described updating block 406, for receiving the updating message that Home eNodeB sends, wherein, this lastest imformation carries the log-on message of renewal;

Then now, registering unit 402, the log-on message also for the renewal received according to updating block 406 positions Home eNodeB.

Determining unit 404, also for the interference source Home eNodeB according to the log-on message upgraded and metrical information determination terminal.

Such as, if the power of adjustment unit 405 pairs of Home eNodeB adjusts, then Home eNodeB is after have adjusted transmitting power, transmitting power after adjustment can be informed to base station controller again, then now the updating block 406 of base station controller will receive the updating message carrying the transmitting power after renewal that Home eNodeB sends, after this, registering unit 402 according to the transmitting power after this renewal, will position Home eNodeB in conjunction with other log-on messages original.And determining unit 404 also will according to the transmitting power after this renewal, in conjunction with other log-on messages original, and the metrical information that metrical information receiving element 403 receives is to determine the interference source Home eNodeB of terminal.

Wherein, determining unit 404 can comprise coupling subelement and determine subelement.

Described coupling subelement, mate for the time difference information of the main scrambler of macro-cell signals quality that main scrambler and/or the Home eNodeB of the Home eNodeB in log-on message are received and/or this Home eNodeB and the time difference information of macrocell and/or the positional information of Home eNodeB and the Home eNodeB measured in metrical information and/or the signal quality measured and/or the Home eNodeB that measures and macrocell and/or the positional information of Home eNodeB that measures, if can mate, then determine that this Home eNodeB is target household base station.

Describedly determine subelement, during for not accessing this target household base station according to the access module in log-on message and/access control lists determination terminal, determining to mate the target household base station that subelement determines is interference source Home eNodeB; Or, determine that the target household base station that coupling subelement is determined is interference source Home eNodeB according to the close subscriber group ability of the access module in log-on message, macrocell Neighboring Cell List and terminal.Such as, if the access module of this target household base station is closed mode, and not in the Neighboring Cell List of macrocell and terminal does not support close subscriber group ability, then determine that this target household base station is interference source Home eNodeB.

Described adjustment unit 405, carries the space interface signaling of power control information to Home eNodeB specifically for transmission; Or transmitted power adjustment signaling is to Home eNodeB; Wherein, power control information or power adjustment signaling can comprise the adjustable extent of power and/or adjusting range and/or temporal information, see embodiment of the method above, do not repeat them here.

Optionally, all right this interference source Home eNodeB of first paging before power adjustment is carried out to interference source Home eNodeB, to be confirmed whether to need to carry out power adjustment to this interference source Home eNodeB, namely see Fig. 4 b, this base station controller can also comprise paging unit 407.

Described paging unit 407, for the interference source Home eNodeB that paging determining unit 404 is determined.

Then described adjustment unit 405, for after paging unit 407 paging to described interference source Home eNodeB, carries out power adjustment to this interference source Home eNodeB.

Further, after terminal leaves interference source family, base station controller can also notify that Home eNodeB recovers original power.

Described adjustment unit 405, also for after determining that terminal leaves this interference source Home eNodeB, notifies that this interference source Home eNodeB recovers power.

During concrete enforcement, above unit can as independently entity realization, and can realize as one or several entities, the specific embodiment of above unit see embodiment of the method above, can not repeat them here yet.

This base station controller is specifically as follows the net control devices such as RNC.

As from the foregoing, log-on message receiving element 401 in the present embodiment base station controller and registering unit 402 can accept the registration of Home eNodeB, thus make base station controller have a understanding shifted to an earlier date to potential interference source Home eNodeB, like this, follow-up needs terminal carry out a common measurement and report, determining unit 404 just can find interference source Home eNodeB easily, and carry out interference management by adjustment unit 405 pairs of interference source Home eNodeB, the program is adopted to can be avoided in prior art, need the cell ID getting interference source Home eNodeB by terminal just can carry out the situation of interference management, can in time and effectively interference management is carried out to Home eNodeB, to reduce the interference of Home eNodeB to terminal.

Accordingly, the embodiment of the present invention also provides a kind of Home eNodeB, and as shown in Figure 5 a, this Home eNodeB 500 comprises transmitting element 501, receiving element 502 and adjustment unit 503; In order to more clearly be described, in Fig. 5 a, give base station controller 400.Wherein, base station controller 400 is specifically as follows the net control devices such as RNC.

Described transmitting element 501, for sending login request message to the base station controller 400 of macrocell, wherein, login request message carries log-on message.

This log-on message can comprise essential information and other information of Home eNodeB.

Such as, the essential information of Home eNodeB can comprise the transmitting power of Home eNodeB and/or the main scrambler of Home eNodeB and/or access module and/or access control lists.

Other information can comprise other adjacent cell signal qualitys and/or the time difference information of this Home eNodeB and macrocell and/or the positional information of Home eNodeB that macro-cell signals quality that Home eNodeB receives and/or Home eNodeB receive to circuit loss value and/or the Home eNodeB of macrocell.Wherein, positional information can be specifically various locating information, such as gps location etc.

Described receiving element 502, the registration reply message that the expression returned for receiving base station controller 400 is succeeded in registration.

Described adjustment unit 503, for when being confirmed as interference source Home eNodeB, accepts the power adjustment of base station controller 400.

Wherein whether this Home eNodeB 500 is interference source Home eNodeB, can be determined, see embodiment of the method above, do not repeat them here by the metrical information of base station controller according to log-on message and terminal to report.Wherein, the positional information etc. of Home eNodeB that the metrical information of terminal to report can comprise the main scrambler of the Home eNodeB measured and/or the time difference information of the signal quality measured and/or the Home eNodeB measured and macrocell and/or measure, positional information can be specifically various locating information, such as GPS locating information etc.It should be noted that, the time of these metrical informations is obtained in order to save terminal, and the amount of information of the log-on message carried when reducing registering family base station, during specific embodiment, the content of log-on message and metrical information can be selected according to the demand of practical application, wherein, metrical information is corresponding with log-on message.

During concrete enforcement, Home eNodeB can select base station controller to initiate registration according to signal strength signal intensity, also can configure Home eNodeB in advance and specifically which base station controller initiate registration in home base station management system, namely see Fig. 5 b, this Home eNodeB 500 can also comprise selected cell 504.

Described selected cell 504, for selecting base station controller according to signal strength signal intensity; Or, select base station controller 400 according to the configuration in home base station management system.

Then described transmitting element 501, specifically for sending the base station controller 400 that login request message is selected to selected cell 504.

Optionally, if the log-on message of Home eNodeB 500 there occurs change, can also send updating message to base station controller 400 to upgrade the log-on message preserved in base station controller 400, namely this Home eNodeB 500 can also comprise updating block 505.

Described updating block 505, for upgrading log-on message.

Then now, transmitting element 501, the log-on message also for being upgraded by updating block 505 sends to base station controller 400 by updating message, so that base station controller upgrades log-on message.

Wherein, adjustment unit 503 can comprise signaling reception subelement and adjustment subelement.

Described signaling receives subelement, for receiving the space interface signaling carrying power control information or the power adjustment signaling of base station controller 400 transmission.

Described adjustment subelement, the space interface signaling received for receiving subelement according to signaling adjusts transmitting power, or adjusts transmitting power according to the power adjustment signaling that signaling reception subelement receives.

Wherein, this power control information or power adjustment signaling comprise the information such as the adjustable extent of power, adjusting range and/or temporal information, and wherein, temporal information can comprise start-up time and/or the recovery time of power adjustment, etc.; See embodiment of the method above, do not repeat them here.

If include recovery time in temporal information; Then:

Described adjustment unit, can being specifically such as adjustment subelement, also for when arriving described recovery time, transmitting power being adjusted back former transmitting power size.

Or, except independently being recovered except power by Home eNodeB, also can notify that Home eNodeB recovers power by base station controller, that is:

Receiving element 502, the expression also sent for receiving base station controller 400 recovers the notice of power.

Then now, adjustment unit 503, transmitting power is adjusted back former transmitting power size by the notice also for receiving according to receiving element 502.

During concrete enforcement, above unit can as independently entity realization, and can realize as one or several entities, the specific embodiment of above unit see embodiment of the method above, can not repeat them here yet.

As from the foregoing, the transmitting element 501 of the present embodiment Home eNodeB 500 can be registered in advance in the base station controller of macrocell, thus make base station controller 400 have a understanding shifted to an earlier date to potential interference source Home eNodeB, like this, follow-up need terminal to carry out a common measurement and report measurement information to base station controller 400, base station controller 400 just can find interference source Home eNodeB 500 easily, and interference management is carried out to interference source Home eNodeB 500, the program is adopted to can be avoided in prior art, need the cell ID getting interference source Home eNodeB 500 by terminal just can carry out the situation of interference management, can in time and effectively interference management is carried out to Home eNodeB 500, to reduce the interference of Home eNodeB 500 pairs of terminals.

Accordingly, the embodiment of the present invention also provides a kind of communication system, comprises any one base station controller and any one Home eNodeB that the embodiment of the present invention provides.Wherein, base station controller is specifically as follows the net control devices such as RNC.

Described base station controller, for receiving the login request message carrying log-on message that Home eNodeB sends, according to this log-on message Home eNodeB is positioned, and return and represent that the registration reply message that succeeds in registration is to Home eNodeB, the metrical information about Home eNodeB that receiving terminal reports, according to the interference source Home eNodeB of this log-on message and metrical information determination terminal, power adjustment is carried out to this interference source Home eNodeB.

Described Home eNodeB, for send carry log-on message login request message to the base station controller of macrocell, the registration reply message that the expression that reception base station controller returns is succeeded in registration, when being confirmed as interference source Home eNodeB, accepts the power adjustment of base station controller.

Wherein, log-on message comprises essential information and other information of Home eNodeB.Wherein, the essential information of Home eNodeB can comprise the main scrambler of Home eNodeB and/or the transmitting power of Home eNodeB and/or access module and/or access control lists; Other information can comprise other adjacent cell signal qualitys and/or the time difference information of this Home eNodeB and macrocell and/or the positional information of Home eNodeB that macro-cell signals quality that Home eNodeB receives and/or Home eNodeB receive to circuit loss value and/or the Home eNodeB of macrocell, etc.

The positional information etc. of Home eNodeB that metrical information can comprise the main scrambler of the Home eNodeB measured and/or the time difference information of the signal quality measured and/or the Home eNodeB measured and macrocell and/or measure, wherein, positional information can be specifically various locating information, such as GPS locating information etc.

It should be noted that, the time of these metrical informations is obtained in order to save terminal, and the amount of information of the log-on message carried when reducing registering family base station, during specific embodiment, the content of log-on message and metrical information can be selected according to the demand of practical application, wherein, metrical information is corresponding with log-on message.

The enforcement of each equipment specifically see preceding embodiment, can not repeat them here above.

This communication system specifically can be applied in the wireless networks such as UMTS, GSM, GPRS, WCDMA2000, TD-SCDMA, LTE, WLAN/WiFi or WiMAX.

As from the foregoing, the communication system of the present embodiment adopts and allows Home eNodeB register in advance in the base station controller of macrocell, thus make base station controller have a understanding shifted to an earlier date to potential interference source Home eNodeB, like this, follow-up needs terminal carry out common measurement and report, just can find interference source Home eNodeB easily, and interference management is carried out to interference source Home eNodeB, the program is adopted to can be avoided in prior art, need the cell ID getting interference source Home eNodeB by terminal just can carry out the situation of interference management, can in time and effectively interference management is carried out to Home eNodeB, to reduce the interference of Home eNodeB to terminal.

It should be noted that, combining wireless terminal and/or base station describe various aspect herein.Wireless terminal can be point to the equipment that user provides voice and/or data connectivity.Wireless terminal can be connected to the such as computing equipment such as laptop computer or desktop computer, or other communication equipments, such as, and the self contained device such as personal digital assistant (PDA, PersonalDigitalAssistant).Wireless terminal also can be called system, subscri er unit (SubscriberUnit), subscriber station (SubscriberStation), mobile radio station (MobileStation), travelling carriage (Mobile), distant station (RemoteStation), access point (AccessPoint), remote terminal (RemoteTerminal), access terminal (AccessTerminal), user terminal (UserTerminal), user agent (UserAgent), subscriber equipment (UserDevice), or subscriber's installation (UserEquipment).Wireless terminal can be subscriber station, wireless device, cell phone, Personal Communications Services (PCS, PersonalCommunicationService) phone, cordless telephone, Session initiation Protocol (SIP) phone, wireless local loop (WLL, WirelessLocalLoop) stand, personal digital assistant (PDA, PersonalDigitalAssistant), there is the portable equipment of wireless connecting function or be connected to other treatment facilities of radio modem.

Base station, can be the base station (BTS in GSM or CDMA, BaseTransceiverStation), also can be the base station (NodeB) in WCDMA, can also be the evolved base station (eNB or e-NodeB, evolutionalNodeB) in LTE, the present invention limit, but for convenience of description, following embodiment is described for eNB.

Various aspect describes with the form of the system that can comprise one or more equipment, assembly, module or unit etc.Should be appreciated that or understand, various system can comprise equipment, assembly, module and/or the unit etc. that separately add, and/or can not comprise the whole of equipment discussed by reference to the accompanying drawings, assembly, module, unit etc.In another aspect of this invention, the combination of these ways can also be used.

In addition, term "and/or" herein, being only a kind of incidence relation describing affiliated partner, can there are three kinds of relations in expression, and such as, A and/or B, can represent: individualism A, exists A and B simultaneously, these three kinds of situations of individualism B.In addition, character "/" herein, general expression forward-backward correlation is to the relation liking a kind of "or".

One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is that the hardware that can carry out instruction relevant by program has come, this program can be stored in a computer-readable recording medium, storage medium can comprise: read-only memory (ROM, ReadOnlyMemory), random access memory (RAM, RandomAccessMemory), disk or CD etc.

Above a kind of interference management method, device and system that the embodiment of the present invention provides are described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for those skilled in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (36)

1. an interference management method, is characterized in that, comprising:
Base station controller receives the login request message that Home eNodeB sends, and described login request message carries log-on message;
Described base station controller positions Home eNodeB according to described log-on message, and returns and represent that the registration reply message that succeeds in registration is to Home eNodeB;
The metrical information about Home eNodeB that described base station controller receiving terminal reports, described metrical information is the subset of described log-on message;
Described base station controller is according to the interference source Home eNodeB of described log-on message and metrical information determination terminal;
Described base station controller carries out power adjustment to described interference source Home eNodeB.
2. method according to claim 1, is characterized in that,
Described log-on message comprises essential information and other information of Home eNodeB;
Described essential information comprises the main scrambler of Home eNodeB and/or the transmitting power of Home eNodeB and/or access module and/or access control lists;
Other information described comprise other adjacent cell signal qualitys and/or the time difference information of Home eNodeB and macrocell and/or the positional information of Home eNodeB that macro-cell signals quality that Home eNodeB receives and/or Home eNodeB receive to circuit loss value and/or the Home eNodeB of macrocell;
The positional information of Home eNodeB that described metrical information comprises the main scrambler of the Home eNodeB measured and/or the time difference information of the signal quality measured and/or the Home eNodeB measured and macrocell and/or measures.
3. method according to claim 2, is characterized in that, described positioning Home eNodeB according to described log-on message is specially:
According to other neighbor cell signal quality that macrocell receives to main scrambler and the Home eNodeB of the circuit loss value of Home eNodeB and Home eNodeB, Home eNodeB is positioned; Or,
According to other neighbor cell signal quality that main scrambler and the Home eNodeB of Home eNodeB receive, Home eNodeB is positioned; Or,
Home eNodeB is positioned to the circuit loss value of Home eNodeB and the main scrambler of Home eNodeB according to macrocell; Or,
According to the main scrambler of Home eNodeB and the time difference information of Home eNodeB and macrocell, Home eNodeB is positioned; Or,
According to the main scrambler of Home eNodeB and the positional information of Home eNodeB, Home eNodeB is positioned; Or,
Positional information according to Home eNodeB positions Home eNodeB.
4. method according to claim 2, is characterized in that, also comprises before the metrical information about Home eNodeB that described receiving terminal reports:
When determining that this Home eNodeB causes interference to macrocell according to the transmitting power of Home eNodeB, the transmitting power of Home eNodeB is adjusted.
5. the method according to any one of Claims 1-4, is characterized in that, the method also comprises:
Receive the updating message that Home eNodeB sends, described lastest imformation carries the log-on message of renewal.
6. the method according to any one of claim 2 to 4, is characterized in that, the described interference source Home eNodeB according to log-on message and metrical information determination terminal comprises:
The macro-cell signals quality main scrambler of the Home eNodeB in log-on message and/or this Home eNodeB and the time difference information of macrocell and/or the positional information of Home eNodeB and/or Home eNodeB received is mated with the time difference information of the main scrambler of the Home eNodeB measured in corresponding metrical information and/or the Home eNodeB that measures and macrocell and/or the positional information of Home eNodeB measured and/or the signal quality that measures respectively, if can mate, then determine that described Home eNodeB is target household base station; Or,
When determining that described terminal can not access described target household base station according to the access module in log-on message and access control lists, determine that described target household base station is interference source Home eNodeB; Or,
Determine that described target household base station is closed mode according to the access module in log-on message, and described target household base station is not at macrocell Neighboring Cell List, and when terminal does not support close subscriber group, determines that described target household base station is interference source Home eNodeB.
7. the method according to any one of Claims 1-4, is characterized in that, described to interference source Home eNodeB carry out power adjustment comprise:
Transmission carries the space interface signaling of power control information to Home eNodeB; Or,
Transmitted power adjustment signaling is to Home eNodeB.
8. method according to claim 7, is characterized in that, described power control information or power adjustment signaling comprise:
The adjusting range of power and/or adjustable extent and/or temporal information.
9. the method according to any one of Claims 1-4, is characterized in that, described power adjustment is carried out to interference source Home eNodeB before also comprise:
Interference source Home eNodeB described in paging.
10. the method according to any one of Claims 1-4, is characterized in that, described power adjustment is carried out to interference source Home eNodeB after also comprise:
After determining that described terminal leaves described interference source Home eNodeB, notify that described interference source Home eNodeB recovers power.
11. 1 kinds of interference management methods, is characterized in that, comprising:
Send login request message to base station controller, described login request message carries log-on message;
The registration reply message that the expression that reception base station controller returns is succeeded in registration;
When being defined as interference source Home eNodeB by described base station controller according to described log-on message and metrical information, accept the power adjustment of base station controller, described metrical information is the subset of described log-on message.
12. methods according to claim 11, is characterized in that, described transmission login request message also comprises to before base station controller:
The base station controller of the same frequency macrocell that signal is the strongest is selected according to signal strength signal intensity; Or,
Base station controller is selected according to the configuration in home base station management system;
Then send login request message to be specially to the base station controller of macrocell: send login request message to the base station controller selected.
13. methods according to claim 11, is characterized in that, described transmission login request message comprises to base station controller:
Login request message is sent to base station controller by space interface signaling; Or,
Login request message is sent to base station controller by femto gateway or core net; Or,
Login request message is sent to base station controller by the direct interface of Home eNodeB and base station controller.
14. methods according to claim 11, is characterized in that,
According to the metrical information of log-on message and terminal to report, base station controller determines whether Home eNodeB is interference source Home eNodeB.
15. methods according to claim 14, is characterized in that,
Described log-on message comprises essential information and other information of Home eNodeB;
Described essential information comprises the main scrambler of Home eNodeB and/or the transmitting power of Home eNodeB and/or access module and/or access control lists;
Other information described comprise other adjacent cell signal qualitys and/or the time difference information of Home eNodeB and this macrocell and/or the positional information of Home eNodeB that macro-cell signals quality that Home eNodeB receives and/or Home eNodeB receive to circuit loss value and/or the Home eNodeB of macrocell;
The positional information of Home eNodeB that described metrical information comprises the main scrambler of the Home eNodeB measured and/or the time difference information of the signal quality measured and/or the Home eNodeB measured and macrocell and/or measures.
16., according to claim 11 to the method described in 15 any one, is characterized in that, also comprise:
Log-on message is upgraded, the log-on message of renewal is sent to base station controller by updating message, so that base station controller upgrades log-on message.
17., according to claim 11 to the method described in 15 any one, is characterized in that, the described power adjustment accepting base station controller comprises:
Receive the space interface signaling carrying power control information that base station controller sends, according to described space interface signaling, transmitting power is adjusted; Or,
Receive the power adjustment signaling that base station controller sends, according to described power adjustment signaling, transmitting power is adjusted.
18. methods according to claim 17, is characterized in that, described power control information or power adjustment signaling comprise:
The adjusting range of power and/or adjustable extent and/or temporal information.
19. methods according to claim 18, is characterized in that, described temporal information comprises recovery time, then the described power accepting base station controller also comprises after adjusting:
When arriving described recovery time, transmitting power is adjusted back Initial Trans size.
20. methods according to claim 18, is characterized in that, described temporal information comprises recovery time, then the described power accepting base station controller also comprises after adjusting:
Receive the notice of the expression recovery power that base station controller sends; According to described notice, transmitting power is adjusted back Initial Trans size.
21. 1 kinds of base station controllers, is characterized in that, comprising:
Log-on message receiving element, for receiving the login request message that Home eNodeB sends, described login request message carries log-on message;
Registering unit, positions Home eNodeB for the log-on message received according to log-on message receiving element, and returns and represent that the registration reply message that succeeds in registration is to Home eNodeB;
Metrical information receiving element, for the metrical information about Home eNodeB that receiving terminal reports, described metrical information is the subset of described log-on message;
Determining unit, for the interference source Home eNodeB according to described log-on message and metrical information determination terminal;
Adjustment unit, carries out power adjustment for the interference source Home eNodeB determined determining unit.
22. base station controllers according to claim 21, is characterized in that, comprising:
Described log-on message comprises essential information and other information of Home eNodeB;
Described essential information comprises the main scrambler of Home eNodeB and/or the transmitting power of Home eNodeB and/or access module and/or access control lists;
Other information described comprise other adjacent cell signal qualitys and/or the time difference information of Home eNodeB and macrocell and/or the positional information of Home eNodeB that macro-cell signals quality that Home eNodeB receives and/or Home eNodeB receive to circuit loss value and/or the Home eNodeB of macrocell;
The positional information of Home eNodeB that described metrical information comprises the main scrambler of the Home eNodeB measured and/or the time difference information of the signal quality measured and/or the Home eNodeB measured and macrocell and/or measures.
23. base station controllers according to claim 22, is characterized in that,
Described registering unit, positions Home eNodeB specifically for other neighbor cell signal quality received to main scrambler and the Home eNodeB of the circuit loss value of Home eNodeB and Home eNodeB according to macrocell; Or, according to other neighbor cell signal quality that main scrambler and the Home eNodeB of Home eNodeB receive, Home eNodeB is positioned; Or, Home eNodeB is positioned to the circuit loss value of Home eNodeB and the main scrambler of Home eNodeB according to macrocell; Or, according to the main scrambler of Home eNodeB and the time difference information of Home eNodeB and macrocell, Home eNodeB is positioned; Or, according to the main scrambler of Home eNodeB and the positional information of Home eNodeB, Home eNodeB is positioned; Or the positional information according to Home eNodeB positions Home eNodeB.
24. base station controllers according to claim 22, is characterized in that,
Described adjustment unit, also for before returning in registering unit and representing that the registration reply message that succeeds in registration is to Home eNodeB, when determining that this Home eNodeB causes interference to macrocell according to the transmitting power of Home eNodeB, adjusts the transmitting power of Home eNodeB.
25. base station controllers according to any one of claim 21 to 24, is characterized in that, also comprise updating block;
Updating block, for receiving the updating message that Home eNodeB sends, described lastest imformation carries the log-on message of renewal;
Then described registering unit, the log-on message also for the renewal received according to updating block positions Home eNodeB;
Determining unit, also for the interference source Home eNodeB according to the log-on message upgraded and metrical information determination terminal.
26. base station controllers according to any one of claim 22 to 24, is characterized in that, described determining unit comprises coupling subelement and determines subelement;
Coupling subelement, for macro-cell signals quality that the main scrambler of the Home eNodeB in log-on message and/or this Home eNodeB and the time difference information of macrocell and/or the positional information of Home eNodeB and/or Home eNodeB are received with measure in metrical information the main scrambler of Home eNodeB and/or the time difference information of the Home eNodeB that measures and macrocell and/or the positional information of Home eNodeB measured and/or the signal quality that measures mate, if can mate, then determine that described Home eNodeB is target household base station;
Determining subelement, during for determining that described terminal can not access described target household base station according to the access module in log-on message and access control lists, determining that the target household base station that coupling subelement is determined is interference source Home eNodeB; Or, determine that described target household base station is closed mode according to the access module in log-on message, and described target household base station is not at macrocell Neighboring Cell List, and when terminal does not support close subscriber group, determining to mate the target household base station that subelement determines is interference source Home eNodeB.
27. base station controllers according to any one of claim 21 to 24, is characterized in that,
Described adjustment unit, carries the space interface signaling of power control information to Home eNodeB specifically for transmission; Or transmitted power adjustment signaling is to Home eNodeB; Wherein, described power control information or power adjustment signaling comprise the adjusting range of power and/or adjustable extent and/or temporal information.
28. base station controllers according to any one of claim 21 to 24, is characterized in that, also comprise paging unit;
Paging unit, for the interference source Home eNodeB that paging determining unit is determined;
Then described adjustment unit, for after paging unit paging to described interference source Home eNodeB, carries out power adjustment to described interference source Home eNodeB.
29. base station controllers according to any one of claim 21 to 24, is characterized in that,
Described adjustment unit, also for after determining that described terminal leaves described interference source Home eNodeB, notifies that described interference source Home eNodeB recovers power.
30. 1 kinds of Home eNodeB, is characterized in that, comprising:
Transmitting element, for sending login request message to the base station controller of macrocell, described login request message carries log-on message;
Receiving element, the registration reply message that the expression returned for receiving base station controller is succeeded in registration;
Adjustment unit, for when being defined as interference source Home eNodeB by described base station controller according to described log-on message and metrical information, accept the power adjustment of base station controller, described metrical information is the subset of described log-on message.
31. Home eNodeB according to claim 30, is characterized in that, also comprise:
Selected cell, for selecting the base station controller of the same frequency macrocell that signal is the strongest according to signal strength signal intensity; Or, select base station controller according to the configuration in home base station management system;
Then transmitting element, specifically for sending the base station controller that login request message is selected to selected cell.
32. Home eNodeB according to claim 30 or 31, is characterized in that, also comprise updating block;
Updating block, for upgrading log-on message;
Then described transmitting element, the log-on message also for being upgraded by updating block sends to base station controller by updating message, so that base station controller upgrades log-on message.
33. Home eNodeB according to claim 30 or 31, is characterized in that, described adjustment unit comprises signaling and receives subelement and adjustment subelement;
Signaling receives subelement, for receiving the space interface signaling carrying power control information or the power adjustment signaling of base station controller transmission; Described power control information or power adjustment signaling comprise the adjusting range of power and/or adjustable extent and/or temporal information;
Adjustment subelement, for adjusting transmitting power according to described space interface signaling, or adjusts transmitting power according to described power adjustment signaling.
34. Home eNodeB according to claim 33, is characterized in that, described temporal information comprises recovery time;
Then described adjustment subelement, also for when arriving described recovery time, adjusts back former transmitting power size by transmitting power.
35. Home eNodeB according to claim 33, is characterized in that,
Described receiving element, the expression also sent for receiving base station controller recovers the notice of power;
Described adjustment unit, transmitting power is adjusted back former transmitting power size by the notice also for receiving according to receiving element.
36. 1 kinds of communication systems, is characterized in that, comprise any one base station controller described in claim 21 to 29 and any one Home eNodeB described in claim 30 to 35.
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EP12761534.2A EP2690914B1 (en) 2011-03-21 2012-02-02 Method, device and system for interference management
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